Abstract

We have designed a two-dimensional photonic crystal in electro-opticmaterials that can actively control the superprism effect. By applying an electric field to the photonic crystal, the electro-opticeffect will change the dielectric constant of the material, which modifies both the band structure and the dispersion surfaces. In the proposed structures, we show that electric fields of up to 6 V/μm in -based photonic crystals can deflect light up to This device concept can be used for a class of optical modulation devices that can provide a local control of dispersion surfaces within a photonic crystal.